| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] a [adj] [noun] of | 6791 |
|
| 2 | [adv] a [adj] [noun sg] of | 6515 |
|
| 3 | [adv] a [adj] period [prep] | 58 |
|
| 4 | [adv] [art] [adj] period of | 55 |
|
| 5 | [adv] a [adj] period of | 45 |
|
